SM-86B (WORM GEAR DRIVE)
Contents
1. City New York 11101 Tel 718 729 3360 Fax 718 361 2872 http www tcwilson com E mail tewilson tcwilson com2. R 20145 20145 20169 20169 5 WORM AND SHAFT 20140 20140 20167 20167 6 INNER THRUST WASHER 20146 20146 20170 20170 7 MIDDLE SHAFT BUSHING 20147 20147 20171 20171 8 HOUSING 20139 20139 20173 20178 9 GREASE FITTING 20149 20149 20149 20149 10 SHAFT PLAIN BUSHING 20148 20148 20172 20172 11 GEAR HOUSING BUSHING 20141 20141 20176 20181 12 GEAR AND SOCKET 20151 20152 20174 20179 13 GEAR RETAINER SUB ASSEMBLY 20987 20987 20985 20986 14 GEAR RETAINER 20142 20142 20175 20180 15 REAR RETAINER BUSHING 20141 20141 20176 20182 16 ROLL PIN 2 REQ D 50478 50478 50489 50489 SPANNER WRENCH 20328 20328 20329 20330 SM 86B RE ASSEMBLING 1 Replace bronze bushings pc 3 7 10 11 and 15 as required Be sure gear bush ings 11 amp 15 are replaced with warm bevel clearance in the proper position as shown an assembly drawing 2 Check grease fitting pc 9 for free flow of grease and clean or replace as neces sary 3 Replace gear and socket pc 12 properly and grease gear teeth 4 Then screw gear retainer sub assembly pc 13 back in place Position worm bevel clearance as noted on assembly drawing so that gear and socket side play is held to a minimum When this is correctly done the two tapped half holes for set screw pc 1 will be aligned 5 Put steel inner thrust washer with larger hole into housing if necessary and grease inside surface of middle s
3. SM 86B 20135 Wilson 20137 Smarter Tools for 20138 Smarter Work RIGHT ANGLE WORM GEAR DRIVE OPERATING INSTRUCTIONS amp SERVICE MANUAL Rev A 9 17 2007 TO REDUCE THE RISK OF INJURY AND EQUIPMENT DAMAGE USER MUST READ AND UNDERSTAND OPERATOR S MANUAL Thomas Wilson Inc 21 11 44th Avenue Long Island City New York 11101 Tel 718 729 3360 Fax 718 361 2872 http www tcwilson com E mail tcwilson tcwilson com SM 86B SAFETY INSTRUCTIONS N WARNING READ AND UNDERSTAND ALL INSTRUCTIONS Failure to follow all instructions listed below may result in accident fire and or personal injury SAVE THESE INSTRUCTIONS 1 WEAR PROPEL APPAREL No loose clothing or jewelry to get caught in mov ing parts Rubber gloves and footwear are recommended when working outdoors 2 USE SAFETY GLASSES with most tools Also face or dust mask if cutting op eration is dusty 3 SECURE WORK Use clamps or a vise to hold work It s safer than using your hands to operate tool 4 DON T OVERREACH Keep proper footing and balance at all times OPERATION Wilson Worm Gear Drives were designed for maximum duty and service life and are expressly suitable for operating in very confined areas of boiler headers The gear housing is specially shaped and the knurled shank is small enough to provide for ex pander feed movement when working through a handhole They will conveniently reach in for expanding tube
4. haft bushing pc 7 6 After greasing worm push worm and shaft into housing and engage warm and gear Check for proper gear and worm mesh by turning square shaft end slowly while holding worm stub shaft with the thumb 7 Place steel outer thrust washer on worm stub shaft 8 Screw worm retainer and bronze bushing within pc 2 amp 3 into housing and over worm stub shaft Tighten worm retainer so that worm end play is held to a minimum while worm turns gear and socket freely Also align the two tapped half holes for set screw pc 1 9 Insert and tighten both set screws pc 1 10 Add grease to assembly through grease fitting pc 9 with Zerk type hand gun NOTE Whenever worm retainer pc 2 or gear retainer sub assembly pc 13 are replaced in the field the missing tapped half holes must be added to each part There fore when assembly has been properly completed re drill assembly at set screw lo cations with a number 20 drill 161 dia and then re tap 10 32 NF 2 for set screws 1 SPECIFICATIONS Model 20135 20136 20137 20138 Male Square 1 2 3 4 Female Square 1 2 3 4 1 Overall Length 10 3 16 11 1 4 Length 3 3 16 3 27 32 4 1 4 Gear Housing Width 2 1 4 2 5 8 3 1 16 Thickness 1 3 8 1 7 8 Min Hand Hole Diameter 3 3 8 4 4 1 2 Gear Ratio 4 1 2 to 1 5 1 2 to 1 Thomas C Wilson Inc 21 11 44th Avenue Long Island
5. s at right angles to but offset from a handhole LUBRICATION amp MAINTENANCE The Wilson exclusive one piece steel housing and one piece worm shaft assures com plete rigidity continued gear alignment and extended service life For maximum ser vice lubricate with Vital ER SAE 250 oil or equivalent Select the proper square hole size when ordering DIS ASSEMBLING 1 Remove both set screws pc 1 completely 2 Unscrew worm retainer and bronze bushing within 2 amp 3 and remove 3 Push out worm and shaft with steel outer thrust washer pc 4 amp 5 Leave steel in ner thrust washer pc 6 within housing pc 8 unless replacement is required 4 Unscrew gear retainer sub assembly pc 13 and remove Use adjustable spanner wrench 5 Remove gear and socket 12 from within housing Do not disassemble press fitted bronze bushings 3 7 10 11 or 15 except for replacement SM 86B PARTS LIST ULL YR ASS 225222402222 0 BEVEL CLEARANCE RIGHT ANGLE AYA FOR WORM GEAR DRIVE it 12 15 By PC DSCRIPTION CATALOG NO NO RIGHT ANGLE GEAR DRIVE ASSEMBLY 20135 20136 20137 20138 1 LOCKING SET SCREW 2 REQ D 39806 39806 39806 39806 2 WORM RETAINER 20143 20143 20183 20184 3 WORM RETAINER BUSHING 20144 20144 20168 20168 4 OUTER THRUST WASHE
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